Yigit Turgut wrote:
> Works very fine, thank you. I guess sensitivity of LDR will be optimum
> at the exact middle point (a resistor at exact middle  impedance of
> LDR connected). Is it any different than driving a NTC thermistor ?

Not really.  This method is for measuring any variable resistance, includin=
g
positive temperature coefficient thermisters.

The full scale output voltage corresponds to the resistor under test going
from 0 to infinite resistance.  Resolution is greatest at half scale, when
the resistor under test has the same value as the pullup or pulldown
resistor.  Resolution approaches 0 at the ends of the range.


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